<template>
  <div>
    <el-card>
      <el-row>
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            clearable
            v-model="queryInfo.queryString"
            @clear="findPage"
          >
            <el-button slot="append" icon="el-icon-search" @click="findPage" />
          </el-input>
        </el-col>
        <el-col :span="2">
          <el-button
            style="margin-left: 10px"
            v-hasPermi="['MENU_INSERT']"
            @click="insert"
            type="primary"
            >添加信息</el-button
          >
        </el-col>
      </el-row>
      <el-table
        :data="tableList"
        stripe
        :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
        row-key="id"
        v-loading="loading"
        element-loading-spinner="el-icon-loading"
      >
        <el-table-column prop="path" label="前端路由" />
        <el-table-column prop="icon" label="图标" />
        <el-table-column prop="title" label="标题" />
        <el-table-column prop="component" label="前端组件" />
        <el-table-column label="是否启用" v-hasPermi="['MENU_UPDATE']">
          <template slot-scope="scope">
            <el-switch
              @change="updateStatus(scope.row)"
              v-model="scope.row.status"
            />
          </template>
        </el-table-column>
        <el-table-column fixed="right" label="操作" width="150">
          <template slot-scope="scope">
            <el-button
              type="primary"
              @click="update(scope.row)"
              v-hasPermi="['MENU_UPDATE']"
              size="small"
              icon="el-icon-edit"
              circle
            />
            <el-button
              type="danger"
              @click="deleteById(scope.row.id)"
              v-hasPermi="['MENU_DELETE']"
              size="small"
              icon="el-icon-delete"
              circle
            />
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handlePageSize"
        @current-change="handlePageNumber"
        :current-page="queryInfo.pageNumber"
        :page-sizes="[7, 15, 50, 100]"
        v-if="total > 0"
        :page-size="queryInfo.pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      />
    </el-card>
    <!-- 表单添加/修改 -->
    <el-dialog
      :title="title"
      :visible.sync="open"
      width="40%"
      @close="dialogClose"
    >
      <el-form
        :model="form"
        ref="form"
        :rules="rules"
        label-position="right"
        label-width="120px"
      >
        <el-form-item label="是否是父级菜单" v-if="isChildrenMenu">
          <el-checkbox
            style="margin-left: -90%"
            v-model="isChildrenMenu"
            :disabled="disMenuSelect"
          />
        </el-form-item>
        <el-form-item label="父级菜单" prop="parentId" v-if="isChildrenMenu">
          <el-select
            v-model="form.parentId"
            placeholder="请选择"
            style="width: 100%"
          >
            <el-option
              v-for="(item, index) in parentList"
              :key="index"
              :label="item.title"
              :value="item.id"
              :disabled="!item.status"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="前端路径" prop="path">
          <el-input v-model="form.path" />
        </el-form-item>
        <el-form-item label="图标" prop="icon">
          <e-icon-picker v-model="form.icon" />
        </el-form-item>
        <el-form-item label="标题" prop="title">
          <el-input v-model="form.title" />
        </el-form-item>
        <el-form-item label="前端组件" prop="component">
          <el-input v-model="form.component" />
        </el-form-item>
        <el-form-item label="是否启用" prop="status">
          <el-radio-group v-model="form.status" class="status-calss">
            <el-radio :label="true">是</el-radio>
            <el-radio :label="false">否</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="clickCancel">取 消</el-button>
        <el-button type="primary" @click="clickOk">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 分页查询条件
      queryInfo: {
        // 页码
        pageNumber: 1,
        // 页数
        pageSize: 7,
        // 关键字
        queryString: null,
      },
      // 表格数据
      tableList: [],
      // 总记录数
      total: 0,
      // 表单标题
      title: null,
      // 是否打开对话框
      open: false,
      loading: false,
      // 表单数据
      form: {
        status: true,
      },
      // 表单校验
      rules: {
        parentId: [
          {
            required: true,
            //自定义表单校验
            message: "请选择父级菜单",
            trigger: "change",
          },
        ],
        path: [
          { required: true, message: "请输入菜单路径", trigger: "blur" },
          {
            min: 1,
            max: 100,
            message: "菜单路径的长度为1~100",
            trigger: "blur",
          },
        ],
        icon: [
          { required: true, message: "请选择菜单图标", trigger: "change" },
        ],
        title: [
          { required: true, message: "请输入菜单标题", trigger: "blur" },
          { min: 1, max: 50, message: "菜单标题的长度为1~50", trigger: "blur" },
        ],
        component: [
          { required: true, message: "请输入菜单组件路径", trigger: "blur" },
          { min: 1, max: 50, message: "菜单路径的长度为1~50", trigger: "blur" },
        ],
        status: [
          { required: true, message: "请选择是否启用", trigger: "change" },
        ],
      },
      // 父级菜单列表
      parentList: [],
      isChildrenMenu: true,
      disMenuSelect: false,
    };
  },
  created() {
    this.findPage();
    this.findParent();
  },
  methods: {
    findParent() {
      this.$ajax.get("/menu/findParent").then((res) => {
        this.parentList = res.data.data;
      });
    },

    /** 分页查询  */
    findPage() {
      this.loading = true;
      this.$ajax.post("/menu/findPage", this.queryInfo).then((res) => {
        this.loading = false;
        this.tableList = res.data.rows;
        this.total = res.data.total;
      });
    },
    /** 页码改变事件 */
    handlePageNumber(newPageNumber) {
      // 将分页的新数据赋值给分页参数
      this.queryInfo.pageNumber = newPageNumber;
      // 调分页的方法
      this.findPage();
    },
    /** 页数改变的事件 */
    handlePageSize(newPageSize) {
      this.queryInfo.pageSize = newPageSize;
      this.findPage();
    },
    /** 改变菜单据的状态 */
    updateStatus(row) {
      this.$ajax.put("/menu/update", row).then((res) => {
        this.$message.success("状态更新成功！");
      });
    },
    /** 删除权限信息 */
    deleteById(id) {
      this.$confirm(
        "您将操作将永久删除编号为{" + id + "} 的数据, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      )
        .then(() => {
          //调后端删除权限接口
          this.$ajax.delete(`/menu/delete/${id}`).then((res) => {
            this.$message.success(res.data.message);
            this.queryInfo.pageNumber = 1;
            this.findPage();
          });
        })
        .catch(() => {});
    },
    /** 点击新增 */
    insert() {
      this.title = "新增菜单";
      this.open = true;
    },
    /** 点击修改 */
    update(row) {
      this.title = "修改菜单";
      console.log(row);
      if (row.parentId === null) {
        //隐藏父级菜单下拉列表
        this.isChildrenMenu = false;
      } else {
        //禁用菜单级别选择
        this.disMenuSelect = true;
      }
      this.form = row;
      this.open = true;
    },
    /** 关闭对话框的事件 */
    dialogClose() {
      //将整个表单进行重置，并移除校验效果
      this.isChildrenMenu = true;
      this.disMenuSelect = false;
      this.$refs.form.resetFields();
    },
    /** 点击取消 */
    clickCancel() {
      //将整个表单进行重置，并移除校验效果
      this.form = {};
      this.open = false;
      this.isChildrenMenu = true;
      this.disMenuSelect = false;
      this.findPage();
    },
    /** 点击确定 */
    clickOk() {
      // 进行表单校验
      this.$refs.form.validate((valid) => {
        //校验不通过
        if (!valid)
          return this.$message.error("表单校验不通过，请检查后提交！");
        //校验通过 判断是否是新增
        if (this.form.id === undefined || this.form.id === null) {
          this.$ajax.post("/menu/insert", this.form).then((res) => {
            this.$message.success(res.data.message);
            this.open = false;
            this.findPage();
          });
        } else {
          this.$ajax.put("/menu/update", this.form).then((res) => {
            this.$message.success(res.data.message);
            this.open = false;
            this.findPage();
          });
        }
      });
    },
  },
};
</script>

<style scoped>
.status-calss {
  margin-left: -75%;
}
</style>
